=> 0x7f8bcafaf615:	testb  $0x1,(%rax)
   0x7f8bcafaf618:	je     0x7f8bcafaf630
   0x7f8bcafaf61a:	lea    0x40(%rdi),%rdi
   0x7f8bcafaf61e:	callq  0x7f8bcafa1eb0 <_ZN2JS16HeapCellRelocateEPPN2js2gc4CellE@plt>
   0x7f8bcafaf623:	movq   $0x0,0x40(%rbx)
   0x7f8bcafaf62b:	jmpq   0x7f8bcafaf5ab
   0x7f8bcafaf630:	movq   $0x0,0x40(%rbx)
   0x7f8bcafaf638:	jmpq   0x7f8bcafaf5ab
   0x7f8bcafaf63d:	nopl   (%rax)
   0x7f8bcafaf640:	push   %r12
   0x7f8bcafaf642:	push   %rbp
   0x7f8bcafaf643:	push   %rbx
   0x7f8bcafaf644:	mov    0x60(%rsi),%edi
   0x7f8bcafaf647:	mov    %rsi,%rbx
   0x7f8bcafaf64a:	test   %edi,%edi
   0x7f8bcafaf64c:	jne    0x7f8bcafaf698